公开(公告)号：US5063445A

公开(公告)日：1991-11-05

申请号：US511374

申请日：1990-04-19

申请人： Taiji Nishizawa ,  Yutaka Tanaka ,  Seiichi Gohshi ,  Junji Kumada ,  Yuichi Iwadate ,  Kazuhiko Shibuya ,  Toshihiko Susaki ,  Yukihiro Nishida ,  Minoru Honda ,  Taiichiro Kurita ,  Yoshinori Izumi ,  Makoto Okui ,  Isao Kondo ,  Ryoichi Yajima ,  Jun'ichi Ishida

发明人： Taiji Nishizawa ,  Yutaka Tanaka ,  Seiichi Gohshi ,  Junji Kumada ,  Yuichi Iwadate ,  Kazuhiko Shibuya ,  Toshihiko Susaki ,  Yukihiro Nishida ,  Minoru Honda ,  Taiichiro Kurita ,  Yoshinori Izumi ,  Makoto Okui ,  Isao Kondo ,  Ryoichi Yajima ,  Jun'ichi Ishida

IPC分类号： G06T9/00 ,  H04N7/015 ,  H04N7/04 ,  H04N11/24

CPC分类号： H04N7/04 ,  G06T9/004 ,  H04N11/008 ,  H04N7/0152

摘要： A multiple sub-sampling encoding/decoding system performing interfield and interframe offset sub-sampling of a broad bandwidth television signal. The system compresses the television signal to fit, for example, to the transmission bandwidth of the standard television systems, compensates the transmission characteristics, and achieves the optimal frequency allocation of the modulated transmission signal.

摘要翻译： 执行宽带电视信号的帧间和帧间偏移子采样的多个子采样编码/解码系统。 该系统压缩电视信号以适应例如标准电视系统的传输带宽，补偿传输特性，并实现调制传输信号的最佳频率分配。

公开(公告)号：US5561467A

公开(公告)日：1996-10-01

申请号：US498778

申请日：1990-03-26

申请人： Yoshio Takeuchi ,  Makoto Okui ,  Isao Kondo ,  Yasuaki Kanatsugu ,  Junji Kumada ,  Taiichiro Kurita ,  Kazuhiko Shibuya ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Minoru Honda ,  Ryoichi Yajima ,  Shoichi Suzuki ,  Hisakazu Kato ,  Hiroyuki Hamazumi ,  Kazumasa Enami ,  Seiichi Gohshi ,  Yoshinori Izumi ,  Haruo Okuda ,  Ichiro Yuyama ,  Sumio Yano ,  Makoto Tadenuma

发明人： Yoshio Takeuchi ,  Makoto Okui ,  Isao Kondo ,  Yasuaki Kanatsugu ,  Junji Kumada ,  Taiichiro Kurita ,  Kazuhiko Shibuya ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Minoru Honda ,  Ryoichi Yajima ,  Shoichi Suzuki ,  Hisakazu Kato ,  Hiroyuki Hamazumi ,  Kazumasa Enami ,  Seiichi Gohshi ,  Yoshinori Izumi ,  Haruo Okuda ,  Ichiro Yuyama ,  Sumio Yano ,  Makoto Tadenuma

IPC分类号： H04N7/00 ,  H04N7/015 ,  H04N7/08 ,  H04N7/081 ,  H04N9/83 ,  H04N11/14 ,  H04N11/24

CPC分类号： H04N7/0152 ,  H04N11/002 ,  H04N7/007 ,  H04N7/0803 ,  H04N7/081 ,  H04N9/832 ,  H04N11/14 ,  H04N7/0122

摘要： High resolution vertical and horizontal components of a high definition video signal are combined with a standard broadcast system video signal, such as the NTSC system, in which high frequency horizontal resolution components are sampled and used to modulate at least a first sub-carrier signal. The first sub-carrier is frequency interleaved onto the standard broadcast signal. Vertical high resolution components are time compressed and time division multiplexed onto top and bottom portions of the standard broadcast signal. The modified broadcast signal can be decoded by a standard receiver to display a standard resolution video image, while receivers designed to decode the modified signal can time division demultiplex the vertical high resolution components and demodulate the horizontal high resolution components, combine these components with the standard components, and generate a high definition video image.

摘要翻译： 高清晰度视频信号的高分辨率垂直和水平分量与诸如NTSC系统的标准广播系统视频信号组合，其中高频水平分辨率分量被采样并用于至少调制第一副载波信号。 第一副载波被频率交织到标准广播信号上。 垂直高分辨率分量被时间压缩并且被时分复用到标准广播信号的顶部和底部。 修改的广播信号可以由标准接收机解码以显示标准分辨率视频图像，而被设计为解码修改的信号的接收机可以对垂直高分辨率分量进行时分解复用并且解调水平高分辨率分量，将这些分量与标准 组件，并生成高分辨率视频图像。

公开(公告)号：US5072297A

公开(公告)日：1991-12-10

申请号：US499874

申请日：1990-03-27

申请人： Masaru Kanazawa ,  Taiichiro Kurita ,  Kazuhiko Shibuya ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Minoru Honda ,  Kazumasa Enami ,  Haruo Okuda ,  Hideki Suganami ,  Yoshiharu Hoshino ,  Toshiyuki Takegahara ,  Kaoru Watanabe

发明人： Masaru Kanazawa ,  Taiichiro Kurita ,  Kazuhiko Shibuya ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Minoru Honda ,  Kazumasa Enami ,  Haruo Okuda ,  Hideki Suganami ,  Yoshiharu Hoshino ,  Toshiyuki Takegahara ,  Kaoru Watanabe

IPC分类号： H04N7/04 ,  H04N7/088

CPC分类号： H04N7/04 ,  H04N7/088

摘要： A method and system for multiplexing additional audio information in the form of pulse code modulation (PCM) audio signals onto a television signal. The PCM audio signal is time multiplexed into scanning retrace intervals of the video signal. At a receiver, the bit error rate of the decoded PCM audio signal is compared with a threshold so as to switch the audio output from the PCM audio signal to a conventional FM demodulated audio signal when the bit error rate exceeds the predetermined threshold. In this way, the benefits of both PCM audio and FM audio can be obtained by utilizing the higher immunity of FM signals in low signal-to-noise ratio environments, while the high fidelity PCM audio signal is utilized when the signal-to-noise ratio environment is relatively high.

摘要翻译： 一种用于将以脉冲编码调制（PCM）音频信号的形式的附加音频信息复用到电视信号上的方法和系统。 PCM音频信号被时分复用成视频信号的扫描回扫间隔。 在接收机处，将解码的PCM音频信号的误码率与阈值进行比较，以便当误码率超过预定阈值时，将音频输出从PCM音频信号切换到常规的FM解调音频信号。 以这种方式，通过在低信噪比环境中利用FM信号的更高的抗扰度，可以获得PCM音频和FM音频两者的优点，而当使用高保真PCM音频信号时，信噪比 比例环境比较高。

公开(公告)号：US5151779A

公开(公告)日：1992-09-29

申请号：US530760

申请日：1990-05-30

申请人： Yasuaki Kanatsugu ,  Taiichiro Kurita ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Ryoichi Yajima ,  Shoichi Suzuki ,  Hisakazu Kato ,  Kazumasa Enami ,  Haruo Okuda ,  Satoru Koizumi ,  Hideki Suganami ,  Toshiyuki Takegahara ,  Kaoru Watanabe

发明人： Yasuaki Kanatsugu ,  Taiichiro Kurita ,  Taiji Nishizawa ,  Yutaka Tanaka ,  Ryoichi Yajima ,  Shoichi Suzuki ,  Hisakazu Kato ,  Kazumasa Enami ,  Haruo Okuda ,  Satoru Koizumi ,  Hideki Suganami ,  Toshiyuki Takegahara ,  Kaoru Watanabe

IPC分类号： H04N5/60 ,  H04N7/015 ,  H04N7/04 ,  H04N7/081 ,  H04N7/26

CPC分类号： H04N7/081 ,  H04N5/60 ,  H04N5/602 ,  H04N7/015 ,  H04N7/04 ,  H04N19/30 ,  Y10S348/904

摘要： A signal transmission system for high definition television that can handle a second television signal which is superior in quality to a first television signal such as an NTSC (National Television System Committee) television signal. The transmitting end of the system transmits a first television signal including a video signal, audio signals, etc., through a main transmission line, as well as a third television signal including a high definition components obtained as the difference between the second and the first television signal through an auxiliary transmission line. The receiving end of the system receives and synthesizes the first television signal transmitted through the main transmission line and the third television signal transmitted through the auxiliary transmission line to produce the second television signal.

摘要翻译： 一种用于高清晰度电视的信号传输系统，其能够处理质量优于诸如NTSC（国家电视系统委员会）电视信号的第一电视信号的第二电视信号。 系统的发送端通过主传输线路发送包括视频信号，音频信号等的第一电视信号，以及第三电视信号，该第三电视信号包括作为第二和第一 电视信号通过辅助传输线。 系统的接收端接收并合成通过主传输线路发送的第一电视信号和通过辅助传输线路传输的第三电视信号，以产生第二电视信号。

公开(公告)号：US4731651A

公开(公告)日：1988-03-15

申请号：US889226

申请日：1986-07-25

申请人： Kunio Matsumoto ,  Akira Furutani ,  Yutaka Tanaka ,  Toshiro Ohmura ,  Taiichiro Kurita ,  Yoshimichi Ohtsuka ,  Taiji Nishizawa ,  Yuichi Ninomiya

发明人： Kunio Matsumoto ,  Akira Furutani ,  Yutaka Tanaka ,  Toshiro Ohmura ,  Taiichiro Kurita ,  Yoshimichi Ohtsuka ,  Taiji Nishizawa ,  Yuichi Ninomiya

IPC分类号： G06T1/00 ,  H04N5/14 ,  H04N7/01 ,  H04N7/12

CPC分类号： H04N7/014

摘要： Image movement correction is provided in a field conversion television system by deriving simultaneously two fields of a selected number of lines from an original single field and vertically shifting one of the derived fields by 0.5 lines. A movement vector is determined for each field and movement correction is performed based on a current field and a preceding field, in the case of a moving object in the image. If no moving object is present linear approximation is employed to correct for motion caused by the field number conversion. Two memory systems are provided for the two simultaneous fields and also to selectively obtain specific horizontal lines of the current and preceding fields, relative to both simultaneous derived fields. Ultimate selection of a field for display is based upon the detected movement vector.

摘要翻译： 在场转换电视系统中，通过从原始单个场同时导出所选行数的两个场并将所导出的场之一垂直移位0.5行，来提供图像移动校正。 对于每个场确定运动矢量，并且在图像中的移动物体的情况下，基于当前场和前一场进行运动校正。 如果没有移动物体存在线性近似来校正由场号转换引起的运动。 为两个同时的场提供两个存储器系统，并且还相对于两个同时派生的场来选择性地获得当前和先前场的特定水平线。 用于显示的场的极限选择是基于检测到的运动矢量。

公开(公告)号：US4779131A

公开(公告)日：1988-10-18

申请号：US889224

申请日：1986-07-25

申请人： Kunio Matsumoto ,  Tadao Fujita ,  Kenji Takanashi ,  Yutaka Tanaka ,  Toshiro Ohmura ,  Taiichiro Kurita ,  Yoshimichi Ohtsuka ,  Taiji Nishizawa ,  Yuichi Ninomiya

发明人： Kunio Matsumoto ,  Tadao Fujita ,  Kenji Takanashi ,  Yutaka Tanaka ,  Toshiro Ohmura ,  Taiichiro Kurita ,  Yoshimichi Ohtsuka ,  Taiji Nishizawa ,  Yuichi Ninomiya

IPC分类号： G06T7/20 ,  H04N5/14 ,  H04N7/18

CPC分类号： H04N5/144 ,  G06T7/2053

摘要： In an apparatus for detecting movement of a television image in response to frame difference data corresponding to a difference between present frame data and previous frame data, a video signal is divided into a plurality of segmental areas for each frame, a pixel or picture element is selected to represent each of the segmental areas, frame difference data are produced for each of the segmental areas by calculating differences in the position or coordinates of a pixel representative of a segmental area of a previous frame from the respective picture element of the corresponding segmental area in the present frame, and each of the calculated differences smaller than a predetermined magnitude, and which would be characteristic of a stationary background portion of the television image, is omitted from the frame difference data. This is effective to improve the movement vector detection accuracy. The apparatus has a circuit for zeroing the frame difference data, and thereby improving, the movement vector detection reliability when the number of the calculated differences omitted from the frame difference data exceeds a predetermined value.

摘要翻译： 在用于根据与当前帧数据和先前帧数据之间的差对应的帧差数据来检测电视图像的移动的装置中，视频信号被划分成每个帧的多个分段区域，像素或像素是 被选择为表示每个分段区域，通过计算代表先前帧的分段区域的像素的位置或坐标的差异，从而对于每个分段区域产生帧差数据，该像素与相应分段区域的相应像素 在帧差中，从帧差数据中省略计算出的差异小于规定大小，并且将是电视图像的静止背景部分的特征的各个。 这对于提高运动矢量检测精度是有效的。 该装置具有用于使帧差分数据归零的电路，从而提高当从帧差数据中省略的计算出的差异的数量超过预定值时的运动矢量检测可靠性。

公开(公告)号：US4663665A

公开(公告)日：1987-05-05

申请号：US814493

申请日：1985-12-30

申请人： Yutaka Tanaka ,  Taiji Nishizawa ,  Yuichi Ninomiya ,  Toshiro Ohmura ,  Taiichiro Kurita ,  Yoshimichi Ohtsuka

发明人： Yutaka Tanaka ,  Taiji Nishizawa ,  Yuichi Ninomiya ,  Toshiro Ohmura ,  Taiichiro Kurita ,  Yoshimichi Ohtsuka

IPC分类号： H04N7/01

CPC分类号： H04N7/014

摘要： The picture quality deterioration such as judder caused by TV frame number conversion can be mitigated by selecting either the stationary original picture signal or the motion-compensated interpolated picture signal based on the most adaptive motion vector corresponding to the smallest interframe difference between the original picture signal and the motion-compensated picture signals based on the motion vectors individually detected from divisional picture areas. The effect of this mitigation can be increased by weighting the detected motion vectors and by smoothing the contour between motion-compensated picture areas with the aid of filtering.

摘要翻译： 可以通过基于与原始图像信号之间的最小帧间差最大的自适应运动矢量选择固定原始图像信号或运动补偿内插图像信号来减轻由TV帧数转换引起的抖动的图像质量恶化 以及基于从分割图像区域单独检测的运动矢量的运动补偿图像信号。 通过对检测到的运动矢量进行加权并借助于滤波来平滑运动补偿图像区域之间的轮廓，可以提高这种缓解的效果。